Finishing tool

ABSTRACT

SEVERAL ABRADING TOOL ASSEMBLIES ARE DISCLOSED EACH HAVING A FINISHING SHOE RESILIENTLY AND DETACHABLY CLIPPED ONTO A TUBULAR HOLDER.

p 21, 1971 J. H. COUNTRYMAN 3,606,709

FINISHING TOOL Filed April 22, 1968 I 3 Sheets-Sheet 1 INVENTOR. JAMESH. COUNTFYMZIN P 21, 1971 J; H. COUNTRYMAN 3,606,709

FINISHING TOOL Filed April 22, 1968 2 Sheets-Sheet 2 IN VENTOR. JAMES H.(OUNTEYMflN United States Patent 0 3,606,709 FINISHING TOOL James H.Countryman, 3324 Trailon Road, Dayton, Ohio 45439 Filed Apr. 22, 1968,Ser. No. 722,885 Int. Cl. 323d 71/00; B24d 9/02 US. Cl. 51-375 24 ClaimsABSTRACT OF THE DISCLOSURE Several abrading tool assemblies aredisclosed each having a finishing shoe resiliently and detachablyclipped onto a tubular holder.

This invention relates to a finishing tool and more particularly to afinishing tool usable in sanding or polishing automobile bodies or thelike. As will become apparent the tool may be used in finishingsubstantially any metal, wood or plastic surface.

When finishing many types of surfaces, especially those having asubstantial area, portions of which are planar or flat and otherportions of which are curved or arcuate, it is difficult to be certainthat a completely smooth surface is being formed. Thus, for example,when sanding an automobile body that has been filled with lead or aplastic composition, it is quite easy to apply too much pressure to thearea being sanded with the result that that area is recessed below thesurrounding areas. Frequently, only a small portion of an automobilebody will require sanding but considerable care is required to obtain asmooth overall surface. For this reason various finishing tools havebeen designed which have a substantial surface area. One such tool isshaped as a cylinder of cardboard or heavy paper completely coated withgrit or sand. This device has a drawback that once the grit or sand isworn away it cannot be reused. Also, in order to sand a small damagedarea of, for example, an automobile body, it is very difficult to avoidsanding substantial surrounding areas which then will require furtherrefinishing. Some sanding tools are designed with provision forreplacing single sheets of sandpaper. Typically these have unreliable orelese expensive, complicated clamps for holding the sandpaper. One suchtool is cylindrical in form but is made quite flexible and is thereforeinappropriate for many finishing operations.

An object of this invention is to provide an improved finishing toolespecially adapted for use in finishing relativelysmall portions of alarger surface, the major portion of the tool being indefinitelyreusable. To this end, a generally'tubular holder is provided to which afinishing shoe is readily removably attached. The finishing shoe caneither be formed of a finishing material or be covered by a finishingmaterial. When the finishing material becomes clogged or worn throughuse it is discarded and easily replaced.

Another object of this invention is to provide a finishing tool assemblyhaving an elongate holder and a plurality Of removable finishing shoesaligned thereon. In some embodiments, different ones of the finishingshoes may have diiterent types of finishing surfaces. In any event,large surface areas can easily be finished level without damage to thesurrounding areas.

Another object of this invention is to provide a finishing tool having aholder to which may be clamped a variety of types of finishing shoes forworking on various differently contoured surfaces. In accordance withthis invention a single holder may be provided with a supply ofdifferent shapes of finishing shoes, each adapted for a specialfinishing operation.

Another object of this invention is to provide a finishing tool whichcan be either manipulated by hand or by conventional sanding machines orthe like and which is adapted to perform not only sanding but polishingoperations and the like. In accordance with this invention, the tool maybe used with sheets of abrasive material such as sandpaper and withpolishing cloths at the same time, whereby the surface portion to besanded will be brought to a level with surrounding surfaces yetsubstantial surrounding areas will not be marred by sandpaper.

Other objects and advantages will become apparent from the followingdescription and the drawing in which:

FIG. 1 is a perspective View of a finishing tool made in accordance withthis invention;

FIG. 2 is a transverse sectional view of the tool of FIG. 1 taken alongthe line 2-2 thereof;

FIGv 3 is a perspective view of the holder portion and a handle of thetool of FIG. 1 as viewed from its underside;

FIG. 4 is a perspective view of a disassembled finishing shoe used inthe tool of FIG. 1;

FIG. 5 shows a second embodiment of a finishing tool in accordance withthis invention, the FIG. 5 device being usable with only a singlefinishing shoe;

FIG. 6 is a partial perspective view of still another embodiment of thisinvention;

FIG. 7 is an end view of the device of FIG. 6;

FIG. 8 is a cross sectional view of a fourth embodiment of the tool inaccordance with this invention;

FIG. 9 is an end view of an embodiment of this invention utilizing thesame holder as that of the embodiment of FIGS. 7 and 8 with a differentshoe;

FIG. 10 is a partial perspective view of another embodiment of thisinvention in which each finishing shoe is made from a single piece ofsheet metal;

FIG. 11 is an end view of the embodiment of FIG. 10;

FIG. 12 schematically illustrates apparatus used in forming thefinishing shoe of FIG. 10 and shows a portion of a finishing shoe as itwould appear in a longitudinal section along the line 1212 of FIG. 10;

FIG. 13 is a partial perspective view illustrating a tool made inaccordance with this invention manually used in the sanding of anautomobile body; and

FIG. 14 is a perspective view illustrating the manner in which afinishing tool made in accordance with this invention may be attached toan air-operated reciprocating sander.

Referring to FIGS. 1, 2, 3 and 4, a first embodiment of a finishingtool, generally designated 10, is illustrated therein as comprising anelongate, generally tubular, thinwalled, hollow holder 12 and fouridentical abrasive forms or finishing shoes 14 mounted thereon inaligned end-toend relation with their confronting end surfacescoextensive. As shown best in FIGS. 2 and 3, the holder 12 is made froma single sheet of substantially rigid material, such as aluminum, whichis either extruded or rolled into a cylindrical form such that theunstressed transverse cross section thereof is circular. The twocircularly arcuate, convex side walls, designated 16 and 18, of theholder 12 have confronting edges 20 and 22, respectively, definingtherebetween a longitudinal slit 24. Each side wall 16 and 18 is thusgenerally semi-circular and symmetrical with respect to a planelongitudinally separating them and passing vertically and centrallythrough the slit 24 as viewed in FIG. 2.

Each finishing shoe 14, as shown best in FIG. 4, comprises an elongate,generally U-shaped clip 26 of sheet material and a flexible, rectangularpiece of finishing material 28 covering the outer surface of the clip26. The piece of finishing material 28 may be a polishing cloth,sandpaper, emery cloth or the like. The longitudinally extending edges,designated 30, of the finishing material 28 are bent and folded over thelongitudinally extending top margins of the clip 26. In transverse,section, the clip 26 is preferably shaped as an arc of a circle. It ismade of the same material as the holder 12 and, prior to assembly, willhave the same transverse internal and external radii as the side walls16 and 18 of the holder 12.

Since both the holder 12 and the clips 26 are composed of asubstantially rigid material, both have selfsupporting shapes. However,they are adequately resilient in view of the thickness thereof that theside walls 16 and '18 of the holder 12 will be compressed inwardly,narrowing the slit 24, and the opposed sides of each clip 26 will beforced slightly out of their circularly arcuate shape when the shoes 14are pressed onto the holder 12. The folded edges of the sheet material28 clamped between the clips 26 and the holder 12 will conform to thearcuate shapes thereof and, as a result, the opposed, concave innersurfaces of the finishing shoes 14 will firmly resiliently grip theholder 12. Also, the pieces of finishing material 28 are quite firmlyclamped on the clips 26. The total circumference of each clip 26 isgreater than 180 and there is no tendency for the clips 26 to be cammedoff the holder 12 once they are pressed completely thereon.

The tool 10 of FIG. 1 is shown provided with a longitudinally extendinghandle 34 attached thereto by screws 36 and spaced above the holder 12by spacers 38 surrounding the screws 36. The screws 36 are diametricallyopposed to the slit 24 and pass through apertures in the holder 12. Thehandle 34 is, of course, assembled on the holder 12 before the shoes .14are mounted thereon. This can easily be accomplished by passing a screwdriver through the slit 24. When sanding or polishing, the tool 10 ismoved back and forth with a reciprocating motion. Occasionally the tool10 may be rolled about its axis to present fresh finishing material tothe surface being finished or to reach various curved or groovedsurfaces. The use of the tool 10 in sanding a contoured section of anautomobile body 40 is illustrated in FIG. 13.

The spacing of the holes or apertures for receiving the screws 36 isdesirably a standard spacing so that the holder 12 can also be mountedon conventional power operated sanding devices. For example, FIG. 14shows a sanding devices 42 which is air-operated to reciprocably drive acarriage 44 thereon. The holder 12 in FIG. 14 is attached by screws 46to the carriage 44. Only one of the screws 46 is visible in theperspective view of FIG. 14.

As apparent, the sheet material 28, once worn out, can easily bereplaced simply by manually removing the shoes 14 from the holder 12 andfolding freshsheets thereon. Also, all of the shoes need not be coveredby the same type of finishing cloths or sheets. For example, referringto FIG. 1, the central shoe 14 could have a sandpaper surface and thetwo outer shoes a polishing cloth surface. Such a construction isvaluable in sanding or finishing small areas of, for example, anautomobile body where it is desired that the areas being worked upon arelevel with the surrounding areas yet sanding of the surrounding areaswould be undesirable. Of course, it would be possible to use alldifferent grades of sandpaper and other finishing materials on the clips26 to form the finishing shoes 14. As a convenience, each of the clips26 may be proportioned to receive exactly onefourth or one-half of asheet of conventional size sandpaper so that no sandpaper will be wastedin assembling or reassembling the tool of FIGS. 1 through 4. It is to beunderstood, however, that both the holder 12 and theshoes 14 could havelengths different from that illustrated.

In FIG. a finishing tool, generally designated 48, is shown which may beuseful in finishing small surface areas. The tool 48 includes a holder50 which is a short, thin-walled tubular band of cylindrical, sheetmaterial. Except for its length, the tool 48 may be substantiallyidentical to the holder 12 and is provided with 4 a slot designated 51so that the sides thereof can be resiliently forced inwardly to receivea finishing shoe 14 identical to any of the finishing shoes 14 of FIGS.1 through 4.

As previously mentioned, the holder 12 of FIG. 1 and the holder of FIG.5 are circular in transverse cross section and the shoe 14 has circularinner and outer surfaces extending through slightly more than 180. Thecircular construction of the confronting surfaces of the holders and theshoes is desirable to achieve 'a firm clamp on the sheet of finishingmaterial 28 and a firm grip of the shoes 14 on the holders 12 and 50 ofFIGS. 1 through 4 and FIG. 5, respectively. However, the remainingsurface portions of the surface of the holder and shoes need notnecessarily be circular. Another embodiment of the invention employingthe same principles is shown in FIGS. 6 and 7. The tool in FIGS. 6 and7, designated 52, comprises a holder 54 and one or more shoes 56received thereon. The holder 54 has circular sides 58 with confrontingedges 60 defining a longitudinally extending slot therebetween as in thecase of the holder 12 of the embodimentof FIGS. 1 through 4. However, inthe embodiment of FIGS. 6 and 7, the holder 54 has a flat or justslightly curved top plate portion 62. The sheet material forming theholder joining the sides 58 and the top plate portion 62 are bent toform abutments or flanges 64 along the top edges of the sides 58 againstwhich the longitudinally extending top margins of the shoes 56 areabutted. The abutments 64 thus serve to maintain an alignmentof theshoes 56 such that their confronting edges are coextensive when mountedon the holder 54.

The finishing shoes 56 in the embodiment of FIGS. 6 and 7 include a clip66 which again may be formed of the same material as the holder 54 andwhich has circular sides, designated 68, but has a non-circular,generally V-shaped bottom portion 70 adjoining the side portions 68thereof. Each shoe 5 6 finally includes a piece of flexible finishingmaterial 28 identical to that used in FIGS. 1 through 4 and FIG. 5. Ofcourse, in FIG. 7, the piece 28 will conform to the shape of the clip 66and its bottom surface, therefore, will be less rounded. The tool 52 ofFIGS. 6 and 7, accordingly, can be used when finishing more sharplycontoured surface areas than can the tool of FIGS. 1 through 4 orthetool of FIG. 5. However, it should be noted that the shoes 56 of FIGS. 6and 7 could be used with the holder 12 in the embodiment of FIGS. 1through 4 or the holder 50 in the em.- bodiment of FIG. 5 and it iscontemplated that one holder, say,-eitherthe holder 12 of FIG. l through4,, or the holder 54 of FIGS. 6 and 7, could be sold with different setsof shoes such as the shoes 14 andthe shoes 56. No handle is shown inFIGS. 6 and .7, but it will. be understood that the tool 52 could beattached to a handle or a power tool similar to the device 42. For thispurpose, spaced holes72 (only one being visiblein FIG. 6) are provided.1

Further to illustrate the variety of shoes whichmay be used with thetools made in accordance with this invention, FIG. '9 shows the sameholder 54 showrr in FIGS. 6 and 7 but provided with a shoe'74 havingcircular sides but a more rounded or oval bottom portion covering theslot between the confronting edges 60 of the sides 58 of the holder.With the construction of FIG..9,of course, the sheet of finishingmaterial applied to a surface would more easily finish a wider surfacearea than would the shoes of the previously described embodiment.

In each of the preceding embodiments, the cliptpart of the finishingshoe is of the same material and wall thickness as the holder. Both aremanufactured from a relatively rigid material, such as aluminum, and,when assembled, the tools are quite rigid. In FIG. 8, a finishing tool76 is illustrated having an elongate holder-78 of sheet material and anelongate finishing shoe. 80 including an outer lining or piece offinishing material 82 which may be identical to the previously describedpieces of finishing material 28. FIG. 8 shows the tool 76 in transversecross section and it is tobe understood that the holder 78- issufficiently long to receive several shoes 80. The clip 84 of the shoe80 of FIG. 8 is made of a resilient or pliable plastic such as arubberized polyvinyl chloride extruded in the shape illustrated in FIG.8 having an arcuate, thin-walled upper wall 86 and an arcuate,thin-walled lower wall 88 joined along their top edges to form side wallmembers 90. The side members 90 are wedge-shaped in transverse crosssection and considerably thicker than either of the walls 86 and '88.The pliable plastic is sufficiently stiff to render the shapeillustrated in FIG. 8 self-supporting and to resist further separationof the side members 90. Therefore, when assembled, the shoe 80resiliently grips the sides of the holder 78. The upper wall 86 and theside members 90 have a common, concave and circular exposed, uppersurface 92. The radius of the surface 92, designated by the dash line a,is the same as the unstressed radius of the sides of the holder 78 andshorter than the radius b of the upper surface 94 of the lower wall 88.The two radii a and b are struck on spaced parallel and longitudinallyextending centers with the center of radius a being higher or furtherfrom the lower wall 88 than the center of the radius 11 so that bothwalls 86 and 88, in transverse section, are U-shaped and circular yetspaced throughout a major portion of the length thereof, with an airchannel 96 being formed therebetween. The ends of the clip- 84 are openso that no air is trapped in the channel 96'.

The resilient or pliable nature of the material from which the clip 84is made renders the lower wall 88 sufficiently flexible that it conformsto the surface being sanded when pressure is applied thereto. The shoe80 of FIG. 8 is especially adaptable for final finishing operationsrequiring wet sandpaper, but, of course, could be used with drysandpaper or other finishing materials. Because of the flexibility ofthe lower wall 88, wet sandpaper is less likely to be ripped than inthose tools wherein the outer surface of the finishing shoe clip is morerigid.

Further in connection with FIG. 8 it will be noted that the top surfaceof the holder 78 has outwardly extending, solid side flanges or ledges98 integral with the rest of the holder. The side flanges or ledges 98-serve as abutments to align several shoes 80 on the holder 78. Becausethe flanges 98 are solid, the holder 78 could not be formed from flatsheet material but would preferably be extruded. A captive screw 100 isillustrated in FIG. 8 projecting through an aperture 102 in the top ofthe holder 78. Two such screws 100 are used for attachment to a handle(not shown) or to a power operated sanding device such as the device 42shown in FIG. 14 in procisely the same manner described above. It willbe appreciated that the dimensions of the holder 78 of FIG. 8 could bethe same as that of FIG. 1 so that the various finishing shoesillustrated herein could be used therewith. Of course, in such event,the finishing shoe 80 would have a larger external finishing surfacethan the other finishing shoes illustrated in FIGS. 1, 6 and 9.

' Referring now to: FIGS. 10, 11 and 12, a finishing tool 104 isillustrated therein including a holder 6 of a construction substantiallyidentical to the holder 54 illustrated in FIGS. 6, 7 and 9. The topsurface of the holder 106 has a pair of apertures therein, one of whichis illustrated at 108, for attachment of the holder-to a handle or apower operated sanding tool. The primary difference between the tool 104and the tools previously described is in the construction of the shoes,designated 110, each of which is made from a single rectangular piece ofspring steel having a plurality of apertures 112 partially punchedthrough its surface. The apertures 1 12 have been punched downwardly,forcing the ruptured or struck metal from each of the aperturesoutwardly of the holder 106 to form a plurality of teeth 114. As apparent from FlGS. l0 and 12 the teeth 114 lie in longitudinallyextending rows and are struck from the spring metal of the shoe toproject at an acute angle downwardly from the outer surface of the shoe110. Each tooth desirably lies in the same acute angle with respect tothe outer surface of the shoe 110 but all adjacent teeth in each of thelongitudinal rows thereof project in opposite directions along the rows.

The tool 104 is a special purpose tool designed for crude finishingoperations requiring a highly abrasive surface and especially for theinitial finishing of surfaces filled with two-part epoxy or similarfillers. After the surface to be refinished has been filled and whilethe filler is still pliable before fully cured or hardened, the tool 104can be wiped thereacross to remove excess filler material. The tool 104is wiped in reciprocal endwise strokes. During a stroke in one directionthe filler material will be scooped by the teeth 114 projecting in thatsame direction through corresponding apertures 112 and into the openspace 116 inside to tool 104. Of course, during a stroke in the oppositedirection the other teeth 114 will now be active to scoop the fillermaterial into the space 116. Depending upon the character of the surfacebeing finished, the alternate teeth 114 which are not cutting into thesurface during a stroke in a given direction may be sharpened by beingabrasively rubbed across the surface.

The one-piece shoe 110 could have various shapes such as the U-shapedshown in FIGS. 17 and 9. The specific U-shape illustrated in FIGS. 10and 11 is, however, preferred for removing excess filler material fromrather large surface areas. Referring to FIG. 11, which shows an endview of the tool 104, the shoe 110 includes circular side portions 118resiliently gripping the circular sides of the holder 106. As in thepreviously described embodiments, the radius of the circular, externalside surface of the holder 106 may be the same as the radius of theinternal surfaces of the shoe sides 118 before the parts are assembledtogether. The shoe 110 is curved convexly outwardly to each side asindicated at 120 beneath the circular sides 118. The outwardly curvedportions 120 are connected by a rather wide bottom plate portion 122.The plate portion 122 may be planar or, as illustrated, slightlyarcuate.

FIG. 12 schematically illustrates a plurality of punches cooperatingwith a die plate 132 used in forming the teeth 114. It will be observedthat the cooperating surfaces of the punches 130 and the depressions inthe die plate 132 are such that the teeth 114 taper to a sharp outermostedge. The longitudinally extending rows of teeth as viewed in FIG. 10and 11 need not be struck out of the entire surface of the shoe 110 butdesirably would be struck from the entire bottom plate portion 122 andat least part of the lower convexly curved outer sides 120. The rows ofteeth 114 would preferably be formed with the spring steel of the shoe110 laid flat. Thereafter the spring steel is suittably tempered so thatthe shape illustrated in FIGS. 10 and 11 is selfsupporting. The same, ofcourse, would be true if the shoe 110 were made into any of the shapesillustrated in FIGS. 1 through 7 and 9.

The spring steel shoe 110 will not have the rigidity of an aluminum shoeor of the side wallportions 86- and 88 of the plastic shoe 80 of FIG. 8.Therefore, the inherent resiliency of the holder 106 and the shoe 110may not be adequate to retain the shoe 110 on the holder 106. To betterretain the shoe 110 in place, a plurality of protuberances 124 may bepunched outwardly from the metal forming the holder 106 just below theside flanges or abutments, designated 126, thereof. The protuberances124 cooperate with mating apertures 128 in the shoes 110 to align aswell as retain shoes 110 on the holder 106.

If it is desired to make all of the various shoes illustrated hereininterchangeably usable with the various holders illustrated herein, allof the holders could be provided with protuberances similar to theprotuberances 124 and all of the various shoes could be provided withapertures corresponding to the apertures 128. However, suchprotuberances and apertures would not be required in the toolsillustrated in FIGS. 1 to 9 because shoes and holders thereof aresufiiciently rigid to render such protuberances and aperturesunnecessary. Also, it will be appreciated that shoes similar to the shoe110 may be made sufficiently stiff that the protuberances 124 may beunnecessary even for use with such a shoe. Further, conventional, butsuitably formed, punched or perforated abrasive sheets could be clippedto the holder 106 in lieu of the special purpose shoe 110 describedabove.

Although the presently preferred embodiments of this invention have beendescribed, it will be understood that various changes may be made withinthe scope of the appended claims.

Having thus described my invention, I claim:

1. A finishing tool comprising an elongate holder having arcuatelyconvex sides and a plurality of finishing shoes having arcuately convexlongitudinally extending surface portions resiliently gripping the outersurfaces of said sides of said holder and disposed along the length ofsaid holder with the outer surface thereof exposed.

2. The finishing tool of claim 1 further including abutments on saidholder engaged by said shoes for maintaining said-shoes aligned thereon.

3. The finishing tool of claim 1 wherein said holder is cylindrical andsaid sides have confronting margins defining a longitudinally extendingslit therebetween.

4. The finishing tool of claim 1 wherein said elongate holder comprisesa thin-walled body member having substantially circular side walls and atop plate portion.

5. The finishing tool of claim 4 wherein said holder further includesabutments projecting along the sides of said top plate portion andwherein each of said finishing shoes is generally U-shaped and haslongitudinally extending top margins engaging said abutments.

6. The finishing tool of claim 4 wherein said holder has alongitudinally extending slit therethrough facing said top plate portionand defined by lower confronting edges of said side walls and whereinsaid finishing shoes cover at least a portion of said slit.

7. The finishing tool of claim 1 wherein each of said finishing shoescomprises a generally U-shaped clip and a piece of flexible finishingmaterial wrapped about the outer surface of said U-shaped clip andhaving folded edges clamped between the inner surface of a said U-shaped clip and said holder. p

8. The finishing tool of claim 7 wherein both said holder and said clipare made from the same material, and wherein both said holder and saidclip have a selfsupporting shape with sides which are circular intransverse section, said sides prior to assembly having substantiallyidentical transverse sectional radii. I

9. The finishing tool of claim 1 wherein each of said finishing shoescomprises a single sheet of spring metal with teeth struck from themetal thereof projecting outwardly from said holder.

10. The finishing tool of claim 1 further including 'a handle connectedto said holder and extending longitudinally thereof. I

i 11. A finishing tool comprising a generally tubular,

thin-walled holder having a pairof symmetrically dis and longitudinallyextending posed, arcuately convex 7 side wallsand a slit extending theentire length thereof along the plane of symmetry of said pair ofsidewalls, said holder being composed of material which is adequatelyresilient for the thickness thereof that said walls may be pressedtoward said slit, and a finishing shoe having an outer surface ofsurface-finishing capability-and a concave inner. surface includingarcuate, confronting surface portions resiliently gripping said holder.

12. The structure of claim 11 wherein said finishing shoe comprises anelongate generally U-shaped clip andfurther comprises a flexible pieceof finishing material coveringthe outer surface .of said clip, saidpiece of finishing material having folded edges clamped between saidclip and said holder. 1 i i 13. The finishing tool ofclaim 12 whereinsaid clip is formed of sheet material which is sufficiently rigid tobeself-supporting.

14. The finishing tool of claim 13 wherein said clip, in transverse:section, is shaped as an arc of a circle exceeding 15. The finishingtool of claim 13 wherein said clip has longitudinally extending circularand non-circular outer surface portions. 1 16. The finishing tool ofclaim 12 wherein said clip has spaced upper and lower substantiallysemi-circular wall members joined along their longitudinal edges to formsubstantially diametrically opposed sidewalls.

17. The finishing tool of claim 16 wherein said clip is composed of-apliable plastic of sufiicient stififness to resist separation of saidside walls.

- '18. The finishing tool-of claim 17 wherein. said lower Wall of saidclip is sufficiently thin-walled to conform to surfaces being finishedwhen pressure is applied.

19. The finishing tool of claim 11 wherein said finish-. ingshoe is aone-piece member having an abrasive outer surface.

20. The finishing tool. of claim 11 wherein said finishing shoecomprises a one-piece sheet of spring metal formedin a self-supportingshape and having a plurality of teeth struck from the metal thereofprojecting outwardly. from. said holder. 1

. 2,1. Thefinishingshoe of claim 11 wherein a pair ofscrewreceivingholes extend through said holder opposite said slit forreceiving screws or the like for attachment to a handle or .a poweroperated sanding machine. 22. .The finishing tool of claim 11 furtherincluding a handle connected. to said holder and extendinglongitudinally thereof. I

23). The finishing'tool of claim 11 further including a plurality offinishing'shoes substantially identical to said first mentioned shoealigned along the length of said'fholder with adjacent end edges thereofconfrontand coextensive andwith said outer surface of eachQf"Said"shoeseXposedj Y Y 24'. The finishing'tool of claim' 23 whereinsaidholder comprises a single piece "of metal, said-sides of said gciir'cu'lar in transverse section; 'saidholder furthencljudi'ngabijtments engaged by each of "said finishing shoe's for'maintaining said shoes aligned thereon p J H W"; f p

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